During the Blitz of World War II, a female screenwriter works on a film celebrating England's resilience as a way to buoy a weary populace's spirits. Her efforts to dramatise the true story of two sisters who undertook their own maritime mission to rescue wounded soldiers are met with mixed feelings by a dismissive all-male staff.
At the height of the London blitz, Dr Lennox Collins, pioneer of the new forensic science, is enlisted by DI Wilkins after prostitute Mary Williams is strangled and a swastika carved on her tongue.
